Design and implementation of privacy-enhanced operation history middleware for smartphones
- Resource Type
- Conference
- Authors
- Ohta, Ken; Kiminami, Katsuki; Nakagawa, Tomohiro; Doi, Chiaki; Inamura, Hiroshi
- Source
- 2011 Third International Conference on Ubiquitous and Future Networks (ICUFN) Ubiquitous and Future Networks (ICUFN), 2011 Third International Conference on. :336-341 Jun, 2011
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Components, Circuits, Devices and Systems
History
Middleware
Batteries
Servers
Smart phones
Monitoring
Context
operation history
privacy protection
Android
- Language
- ISSN
- 2165-8528
2165-8536
Operation history middleware collects various operation data on smartphones. Because of privacy concerns about sensitive operation data, it needs to meet fine-grained collection needs including collection based on temporal-spatial conditions and temporary suppression of the collection of specific operation types. The on-demand collection method proposed herein dynamically determines the minimum collection set of operation types and their storage period. We develop an Android-based prototype that implements five collection techniques and a selective encryption function to protect sensitive data in the local database. Our evaluation shows that the collection techniques incur low overhead. Encryption overhead in recording is less than 26 milliseconds.